I am running the ARM veyron image on a chromebook flip.

I was having problems with some wireless adapter drivers so recompiled the kernel with the drivers in.

Both adapters now show in ifconfig, I can bring them up, connect to networks, run iw.

However iwconfig now shows:

no wireless extensions

I have checked rfkill list and there are no blocks.

cfg80211 wireless extension compatibility is built in. What else could I have missed from the compilation to stop iwconfig from functioning?